got an one last week and tried to tinker with it
but cant get it to boot and no video output
tried:
official Raspbiian and Lubuntu = black screen; Armbian, forum OpenELEC = no HDMI signal
on:
SanDisk Ultra 64GB, Suntrsi (Aliexpress) 8GB Class 10, No-Name 4GB Class 4, SanDisk 1GB
each.
I was facing the same problem.. I changed my Power supply cables and and power supply too... Now it works just fine... Tried most of the images provided by loboris and armbian.